Elias Simpson resumes & CV records
Resumes
Elias A Simpson, 541941 Mcdaniel Ave, San Jose, CA 95126
Elias Simpson Phones & Addresses
1767 El Codo Way, San Jose, CA 95124 408-4451726
Mountain View, CA
Canoga Park, CA
San Francisco, CA
Sunnyvale, CA
Santa Barbara, CA
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Elias A Simpson
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Mentions for Elias A Simpson
Publications & IP owners
Us Patents
Power Amplifier Pre-Distortion
US Patent:
8294516, Oct 23, 2012
Filed:
Jun 16, 2008
Appl. No.:
12/139634
Inventors:
Christopher Young - Cupertino CA, US
Elias Simpson - San Jose CA, US
Elias Simpson - San Jose CA, US
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H03F 1/26
US Classification:
330149, 375297
Abstract:
The present invention is directed to systems and methods for reducing the distortion of power amplifiers. In particular, methods and systems are described that enable a determination of a pre-distortion correction signal to be determined, which when added to the nominal signal, a reduction in the distortion of the power amplifier results. In addition, methods and systems are described that enable calibration of individual power amplifiers to be accomplished for use with the above described approach. More specifically, the methods and systems are described for use in a MIMO application. These approaches may be applied to on-chip power amplifiers, off-chip power amplifiers, or any combination thereof.
Power Amplifier Pre-Distortion
US Patent:
8618880, Dec 31, 2013
Filed:
Sep 14, 2012
Appl. No.:
13/620463
Inventors:
Christopher Young - Cupertino CA, US
Elias Simpson - San Jose CA, US
Elias Simpson - San Jose CA, US
Assignee:
Broadcom Corporation - Irvine CA
International Classification:
H03F 1/26
US Classification:
330149, 330151
Abstract:
The present invention is directed to systems and methods for reducing the distortion of power amplifiers. In particular, methods and systems are described that enable a determination of a pre-distortion correction signal to be determined, which when added to the nominal signal, a reduction in the distortion of the power amplifier results. In addition, methods and systems are described that enable calibration of individual power amplifiers to be accomplished for use with the above described approach. More specifically, the methods and systems are described for use in a MIMO application. These approaches may be applied to on-chip power amplifiers, off-chip power amplifiers, or any combination thereof.
Processing Data In A Coherent Optical Communication System
US Patent:
2013025, Oct 3, 2013
Filed:
Mar 29, 2012
Appl. No.:
13/434213
Inventors:
Christian Malouin - San Jose CA, US
Theodore John Schmidt - Gilroy CA, US
Bo Zhang - San Jose CA, US
Elias Simpson - San Jose CA, US
Roberto Marcoccia - San Jose CA, US
Theodore John Schmidt - Gilroy CA, US
Bo Zhang - San Jose CA, US
Elias Simpson - San Jose CA, US
Roberto Marcoccia - San Jose CA, US
Assignee:
JUNIPER NETWORKS, INC. - Sunnyvale CA
International Classification:
H04B 10/02
US Classification:
398152, 398140, 398159
Abstract:
This disclosure describes techniques to sample electrical data streams in coherent receivers. For instance, an analog-to-digital converter (ADC) samples the received electrical data stream at a sampling rate that is nominally twice or greater than twice the symbol rate of the electrical data stream that the ADC receives. A digital filter receives the digital data stream from the ADC, and digitally filters the digital data streams to output a filtered digital electrical data stream at an effective sampling rate that is less than the sampling rate and less than twice the symbol rate, and greater than or equal to the symbol rate.
Processing Data In A Coherent Optical Communication System
US Patent:
2015023, Aug 20, 2015
Filed:
Apr 29, 2015
Appl. No.:
14/699093
Inventors:
- Sunnyvale CA, US
Theodore John Schmidt - Gilroy CA, US
Bo Zhang - San Jose CA, US
Elias Simpson - San Jose CA, US
Roberto Marcoccia - San Jose CA, US
Theodore John Schmidt - Gilroy CA, US
Bo Zhang - San Jose CA, US
Elias Simpson - San Jose CA, US
Roberto Marcoccia - San Jose CA, US
International Classification:
H04B 10/61
H04L 27/227
H04J 14/06
H04L 7/00
H04B 10/40
H04L 27/227
H04J 14/06
H04L 7/00
H04B 10/40
Abstract:
This disclosure describes techniques to sample electrical data streams in coherent receivers. For instance, an analog-to-digital converter (ADC) samples the received electrical data stream at a sampling rate that is nominally twice or greater than twice the symbol rate of the electrical data stream that the ADC receives. A digital filter receives the digital data stream from the ADC, and digitally filters the digital data streams to output a filtered digital electrical data stream at an effective sampling rate that is less than the sampling rate and less than twice the symbol rate, and greater than or equal to the symbol rate.
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